The HD 177830 system contains 2 exoplanets. It is located 204.72 light years away from the solar system.
| Mass | 1.7 solar masses |
| Radius | 3.26 solar radiae |
| Temperature | 4901 kelvin |
| Stellar Metallicity | 0.42 decimal exponent |
| Age | 4.4 billion years |
At more than 50 Earth masses, HD 177830 b is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 537.133 Earth masses |
| Density | 1.200 grams per cubic centimeter |
| Radius | 13.500 Earth radiae |
| Semi-major Axis | 1.14 AU |
| Eccentricity | 0.1 |
| Orbital Period | 410.100 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | W. M. Keck Observatory |
| Discovery Telescope | 10 m Keck I Telescope |
| Discovery Instrument | HIRES Spectrometer |
| Discovery Date | 2000-06 |
| Reference | Vogt et al. 2000 |
At more than 10 Earth masses, HD 177830 c is an ice giant, a planet that is made up mostly of volatiles like water, amonia and methane, and enveloped by a dense hydrogen and helium atmosphere, much like Uranus and Neptune.
| Mass | 47.672 Earth masses |
| Density | 0.537 grams per cubic centimeter |
| Radius | 7.870 Earth radiae |
| Semi-major Axis | 0.5137 AU |
| Eccentricity | 0.3 |
| Orbital Period | 110.900 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | W. M. Keck Observatory |
| Discovery Telescope | 10 m Keck I Telescope |
| Discovery Instrument | HIRES Spectrometer |
| Discovery Date | 2011-02 |
| Reference | Meschiari et al. 2011 |